Heat pollution

Heat pollution

Heat pollution (atmospheric) is a term used to describe the release of heat into the environment by human activities. [citeweb|title=Air Pollution & the Urban Heat Island|url=http://iri.columbia.edu/~bhoch/bergen/pdf/lec14notes.pdf|publisher="The Earth Institute"|accessdate=2008-10-03] By contrast, global warming is thought to be the result of the increase in greenhouse gases (CO2 emissions). [citeweb|title=Top Firms Call for Climate Action|url=http://www.edf.org/article.cfm?contentID=5828|publisher="Environmental Defense Fund|accessdate=2008-10-01] Experts on the climate have debated the broader subject of global warming as well as its potential constituents. These include heat pollution, the greenhouse effect, and solar variation.

Urban heat island

Developed environments like concrete and black roads absorb and store heat more readily than natural land cover because of their heat capacity. The urban heat island phenomenon traps heat in thermal mass and is ultimately emitted back into to the urban air especially at night. [citeweb|title=Anthropogenic heat island at Barrow|author=Kenneth M. Hinkel|url=http://www.geography.uc.edu/~kenhinke/uhi/Hinkel&Nelson_JGR-A_2007.pdf|doi=10.1029/2006JD007837] This hot city phenomenon has far-reaching environmental sustainability and human livability implications, ranging from the aggravation of health problems such as hyperthermia, increasing the intensity of urban air pollution, and contributing to extreme heat waves. [citeweb|title=Heat Wave: A Major Summer Killer|url=http://www.nws.noaa.gov/om//brochures/heat_wave.shtml|publisher="National Weather Service"|accessdate=2008-10-03] Excess heat also adds to the ever-increasing use of air conditioners, with higher demands on the energy supply, potentially resulting in brownouts and higher greenhouse gas emissions.citeweb|title=How Do Heat Islands Affect Us?
url=http://www.epa.gov/hiri/resources/pdf/HIRIbrochure.txt|publisher="Environmental Protection Agency"|accessdate=2008-10-02
]

Some causes of urban heat islands are the displacement of trees and vegetation to make way for development and even prevailing weather conditions. Heat from vehicles, manufacturing plants, and thermal power stations also contribute to excess heat in urban areas. Land use is a key attribute for the development of locally significant heat islands.

Impact on global climate

The Intergovernmental Panel on Climate Change states that the net effects of heat pollution on global warming "are small at the global scale in comparison with greenhouse gas warming". [cite book | title = Working Group I: The Physical Basis for Climate Change (Technical summary) | publisher = IPCC | year = 2007 | isbn = 978 0521 88009-1 | url = http://ipcc-wg1.ucar.edu/wg1/Report/AR4WG1_Print_TS.pdf]

ee also

*Little Ice Age

References


Wikimedia Foundation. 2010.

Look at other dictionaries:

  • heat pollution — heat pollution, = thermal pollution. (Cf. ↑thermal pollution) …   Useful english dictionary

  • heat pollution — šiluminė tarša statusas T sritis ekologija ir aplinkotyra apibrėžtis Tarša, atsiradusi nutekėjus šilumai iš įrenginių į aplinką dėl kuro deginimo. Pasireiškia pasauliniu klimato šiltėjimu. atitikmenys: angl. heat pollution; thermal pollution vok …   Ekologijos terminų aiškinamasis žodynas

  • Pollution — For the Fransisco Battiato album, see Pollution (album). For the Goodies episode, see Pollution (The Goodies). Air pollution from World War II weapon production in Alabama, 1942 …   Wikipedia

  • pollution — /peuh looh sheuhn/, n. 1. the act of polluting or the state of being polluted. 2. the introduction of harmful substances or products into the environment: air pollution. [1350 1400; ME pollucioun ( < OF) < LL pollution , s. of pollutio… …   Universalium

  • Heat exchanger — An interchangeable plate heat exchanger Tubular heat exchan …   Wikipedia

  • Pollution in eloor — ENVIRONMENTAL POLLUTION Environmental pollution is the addition of any substance or form of energy (e.g., heat, sound, radioactivity) to the environment at a rate faster than the environment can accommodate it by dispersion, breakdown, recycling …   Wikipedia

  • Pollution at Morgan's Point (Bermuda) — The former US Navy Annex, located on Morgan s Point, was returned to Bermuda in 1995 with the premature termination of a 99 year lease. The base had functioned as a way station for ships and seaplanes for over 50 years but the end of the Cold War …   Wikipedia

  • thermal pollution — noun harm to lakes and rivers resulting from the release of excessive waste heat into them • Hypernyms: ↑pollution * * * noun : the discharge of heated liquid (as wastewater from a factory) into natural waters at a temperature harmful to existing …   Useful english dictionary

  • thermal pollution — šiluminė tarša statusas T sritis ekologija ir aplinkotyra apibrėžtis Tarša, atsiradusi nutekėjus šilumai iš įrenginių į aplinką dėl kuro deginimo. Pasireiškia pasauliniu klimato šiltėjimu. atitikmenys: angl. heat pollution; thermal pollution vok …   Ekologijos terminų aiškinamasis žodynas

  • Water pollution — Raw sewage and industrial waste flows across international borders New River passes from Mexicali to Calexico, California. Water pollution is the contamination of water bodies (e.g. lakes, rivers, oceans and groundwater). Water p …   Wikipedia

Share the article and excerpts

Direct link
Do a right-click on the link above
and select “Copy Link”